# HG changeset patch # User francis # Date 1268989862 0 # Node ID f190851b2dbb556b8b80d2eed8aee9f70cc5032e # Parent 7f671b74a3a8bb8ae17671dfdc88176eec0e20ed Swap Final Results and conclusion diff -r 7f671b74a3a8 -r f190851b2dbb reports/final/content/finalproduct.tex --- a/reports/final/content/finalproduct.tex Fri Mar 19 09:09:52 2010 +0000 +++ b/reports/final/content/finalproduct.tex Fri Mar 19 09:11:02 2010 +0000 @@ -1,3 +1,40 @@ + +\chapter{Final Results} + +With the batch command line option of the application, it is possible to +process a large amount of images of eyes. Using this option, 108 images of eyes +from the CASIA database were loaded into the application; the pupil, iris and eyelids were auto-detected to generate a bitcode and store it in the database. These were then compared to an alternative image of each eye +to check for matches. + + +To further test primarily for false matches, the first three images of each eye were +loaded into the database, and then compared to a fourth +image for each eye. As there were originally three images for each eye, and +then a comparison was performed on all of the extra 108 images, roughly 35,000 +iris comparisons took place ($(108 * 3) * 108$). + +Our results of these tests are as follows: \begin{itemize} \item 0 false + matches in $\sim$35,000 comparisons \item 70\% (75 out of 108) match rate + with Professor Daugman's suggested 0.32 Hamming distance. +\end{itemize} + +The complete lack of any false matches and the incredibly high match rate are a +testament to the robustness and feasibility of an iris recognition system. The +tests have suggested that in virtually any case where the iris boundary is +correctly located, the iris should be correctly identified. + +As a roughly 70\% match rate was achieved for the iris location, this percentage has, as +predicted, been reflected in the overall match rate in the +database of images. Similarly to Daugman, we can also observe that the Hamming +distances produced by comparing different irides tends to follow a binomial distribution, with a mean around 0.46; see +figure \ref{hd}. + +\begin{figure} + \centering + \includegraphics[width=0.55\textwidth]{hd} + \caption{The distribution of Hamming distances for one run of all the irides in the database} + \label{hd} +\end{figure} \chapter{Conclusions} \section{Final Product} The final prototype is a functional iris detection application, which provides the @@ -49,43 +86,6 @@ thickness of the top eyelid, it can be seen that, although not perfect, a very reasonable estimate of the eyelid boundary is found automatically. -\chapter{Final Results} - -With the batch command line option of the application, it is possible to -process a large amount of images of eyes. Using this option, 108 images of eyes -from the CASIA database were loaded into the application; the pupil, iris and eyelids were auto-detected to generate a bitcode and store it in the database. These were then compared to an alternative image of each eye -to check for matches. - - -To further test primarily for false matches, the first three images of each eye were -loaded into the database, and then compared to a fourth -image for each eye. As there were originally three images for each eye, and -then a comparison was performed on all of the extra 108 images, roughly 35,000 -iris comparisons took place ($(108 * 3) * 108$). - -Our results of these tests are as follows: \begin{itemize} \item 0 false - matches in $\sim$35,000 comparisons \item 70\% (75 out of 108) match rate - with Professor Daugman's suggested 0.32 Hamming distance. -\end{itemize} - -The complete lack of any false matches and the incredibly high match rate are a -testament to the robustness and feasibility of an iris recognition system. The -tests have suggested that in virtually any case where the iris boundary is -correctly located, the iris should be correctly identified. - -As a roughly 70\% match rate was achieved for the iris location, this percentage has, as -predicted, been reflected in the overall match rate in the -database of images. Similarly to Daugman, we can also observe that the Hamming -distances produced by comparing different irides tends to follow a binomial distribution, with a mean around 0.46; see -figure \ref{hd}. - -\begin{figure} - \centering - \includegraphics[width=0.55\textwidth]{hd} - \caption{The distribution of Hamming distances for one run of all the irides in the database} - \label{hd} -\end{figure} - \newpage \section{Source Code}